Virtual Private Routed Network Services
7210-SAS M Services Guide Page 563
CE to PE Routing Protocols
The 7210 SAS VPRN supports the following PE to CE routing protocols:
•BGP
• Static
PE to PE Tunneling Mechanisms
The 7210 SAS supports multiple mechanisms to provide transport tunnels for the forwarding of
traffic between PE routers within the 2547bis network.
The 7210 SAS VPRN implementation supports the use of:
• RSVP-TE protocol to create tunnel LSP's between PE routers
• LDP protocol to create tunnel LSP's between PE routers
These transport tunnel mechanisms provide the flexibility of using dynamically created LSPs
where the service tunnels are automatically bound (the “autobind” feature) and the ability to
provide certain VPN services with their own transport tunnels by explicitly binding SDPs if
desired. When the autobind is used, all services traverse the same LSPs and do not allow alternate
tunneling mechanisms or the ability to craft sets of LSP's with bandwidth reservations for specific
customers as is available with explicit SDPs for the service.
Per VRF Route Limiting
The 7210 SAS allows setting the maximum number of routes that can be accepted in the VRF for
a VPRN service. There are options to specify a percentage threshold at which to generate an event
that the VRF table is near full and an option to disable additional route learning when full or only
generate an event.
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